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Shell Programming and Scripting
Grep multiple patterns
Post 84254 by shihabvk on Friday 23rd of September 2005 07:03:58 AM
09-23-2005
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10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
I want to get a list of all the files in the current directory that have two patterns. I can do first grep of one pattern and then with the output do the grep of the second pattern.
if the output of 1st pattern search results in many files, it is very difficult to do a grep of the 2nd pattern for... (1 Reply)
Discussion started by: tselvanin
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2. Shell Programming and Scripting
Hi All,
I have a file. I need to find multiple patterns in a row and need those rows to divert to new file.
I tried using grep -e / -E / -F options as given in man.
But its not working.
==> cat testgrep.txt
william,fernandes,xxxxx
mark,morsov,yyyy
yy=,xx=
yyyy=,xxxx==
==>... (7 Replies)
Discussion started by: WillImm123
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3. Shell Programming and Scripting
Hii... Every One......
I want to grep multiple patterns with space in between them.
For eg : I have a file which contains following :
red cat
every one
new one
you are
an ox
take one
Now, what I want to do is to grep " you are" , "an ox" and "red cat" from this file.
Any help........ (5 Replies)
Discussion started by: prashantshukla
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4. Shell Programming and Scripting
Guys,
i used egrep "pattern1|pattern2". But the whole word is searched. But i want the output if only the exact word is matched. i.e the output is got evenif a part of the pattern is matched.
I tried the -w opion but its showing usage error.
Please help me out on this one. please sent me... (2 Replies)
Discussion started by: meheretoknow
2 Replies
5. Shell Programming and Scripting
Hi,
I want to list the files containing a no of pattern
like for single string i can use
grep -l "string" *
This command will enlist the files containg this string. Similarly i would like to use for multiple string.
I like to enlist file names having string1 and string 2
Can... (3 Replies)
Discussion started by: vikash_k
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6. Shell Programming and Scripting
I have a file with many rows.
I want to grep for multiple patterns from the file.
For eg:
XX=123|YY=222|ZZ=566
AA=123|EE=222|GG=566
FF=123|RR=222|GG=566
DD=123|RR=222|GG=566
I want the lines which has both XX and ZZ.
I know I can get it like this.
grep XX file | grep YY
But... (10 Replies)
Discussion started by: tene
10 Replies
7. Shell Programming and Scripting
Hi,
I want to grep multiple patterns from multiple files and save to multiple outputs. As of now its outputting all to the same file when I use this command.
Input : 108 files to check for 390 patterns to check for. output I need to 108 files with the searched patterns.
Xargs -I {} grep... (3 Replies)
Discussion started by: Diya123
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8. Shell Programming and Scripting
job_count=`grep -e "The job called .* has finished | The job called .* is running" logfile.txt | wc -l`
Any idea how to count those 2 patterns so i have a total count of the finished and running jobs from the log file?
If i do either of the patterns its works okay but adding them together... (8 Replies)
Discussion started by: finn
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9. Shell Programming and Scripting
I am trying to grep a variable with multiple lines with multiple patterns
below is the pattern list in a variable called "grouplst", each pattern is speerated by "|"
grouplst="example1|example2|example3|example4|example5|example6|example7"
I need to use the patterns above to grep a... (2 Replies)
Discussion started by: ajetangay
2 Replies
10. UNIX for Beginners Questions & Answers
I am able to grep multiple patterns which stored in a files. However, how could we replace the whole line with either the pattern or new string?
For example:
pattern_file: *Info in the () is not part of the pattern file. They are the intended name to replace the whole line after the pattern... (5 Replies)
Discussion started by: wxboo
5 Replies
LEARN ABOUT OPENSOLARIS
egrep
egrep(1) User Commands egrep(1) NAME
egrep - search a file for a pattern using full regular expressions SYNOPSIS
/usr/bin/egrep [-bchilnsv] -e pattern_list [file...] /usr/bin/egrep [-bchilnsv] -f file [file...] /usr/bin/egrep [-bchilnsv] pattern [file...] /usr/xpg4/bin/egrep [-bchilnqsvx] -e pattern_list [-f file] [file...] /usr/xpg4/bin/egrep [-bchilnqsvx] [-e pattern_list] -f file [file...] /usr/xpg4/bin/egrep [-bchilnqsvx] pattern [file...] DESCRIPTION
The egrep (expression grep) utility searches files for a pattern of characters and prints all lines that contain that pattern. egrep uses full regular expressions (expressions that have string values that use the full set of alphanumeric and special characters) to match the patterns. It uses a fast deterministic algorithm that sometimes needs exponential space. If no files are specified, egrep assumes standard input. Normally, each line found is copied to the standard output. The file name is printed before each line found if there is more than one input file. /usr/bin/egrep The /usr/bin/egrep utility accepts full regular expressions as described on the regexp(5) manual page, except for ( and ), ( and ), { and }, < and >, and , and with the addition of: 1. A full regular expression followed by + that matches one or more occurrences of the full regular expression. 2. A full regular expression followed by ? that matches 0 or 1 occurrences of the full regular expression. 3. Full regular expressions separated by | or by a NEWLINE that match strings that are matched by any of the expressions. 4. A full regular expression that can be enclosed in parentheses ()for grouping. Be careful using the characters $, *, [, ^, |, (, ), and in full regular expression, because they are also meaningful to the shell. It is safest to enclose the entire full regular expression in single quotes (a'a'). The order of precedence of operators is [], then *?+, then concatenation, then | and NEWLINE. /usr/xpg4/bin/egrep The /usr/xpg4/bin/egrep utility uses the regular expressions described in the EXTENDED REGULAR EXPRESSIONS section of the regex(5) manual page. OPTIONS
The following options are supported for both /usr/bin/egrep and /usr/xpg4/bin/egrep: -b Precede each line by the block number on which it was found. This can be useful in locating block numbers by context (first block is 0). -c Print only a count of the lines that contain the pattern. -e pattern_list Search for a pattern_list (full regular expression that begins with a -). -f file Take the list of full regular expressions from file. -h Suppress printing of filenames when searching multiple files. -i Ignore upper/lower case distinction during comparisons. -l Print the names of files with matching lines once, separated by NEWLINEs. Does not repeat the names of files when the pattern is found more than once. -n Precede each line by its line number in the file (first line is 1). -s Work silently, that is, display nothing except error messages. This is useful for checking the error status. -v Print all lines except those that contain the pattern. /usr/xpg4/bin/egrep The following options are supported for /usr/xpg4/bin/egrep only: -q Quiet. Does not write anything to the standard output, regardless of matching lines. Exits with zero status if an input line is selected. -x Consider only input lines that use all characters in the line to match an entire fixed string or regular expression to be matching lines. OPERANDS
The following operands are supported: file A path name of a file to be searched for the patterns. If no file operands are specified, the standard input is used. /usr/bin/egrep pattern Specify a pattern to be used during the search for input. /usr/xpg4/bin/egrep pattern Specify one or more patterns to be used during the search for input. This operand is treated as if it were specified as -epat- tern_list.. USAGE
See largefile(5) for the description of the behavior of egrep when encountering files greater than or equal to 2 Gbyte ( 2^31 bytes). ENVIRONMENT VARIABLES
See environ(5) for descriptions of the following environment variables that affect the execution of egrep: LC_COLLATE, LC_CTYPE, LC_MES- SAGES, and NLSPATH. EXIT STATUS
The following exit values are returned: 0 If any matches are found. 1 If no matches are found. 2 For syntax errors or inaccessible files (even if matches were found). ATTRIBUTES
See attributes(5) for descriptions of the following attributes: /usr/bin/egrep +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ |CSI |Not Enabled | +-----------------------------+-----------------------------+ /usr/xpg4/bin/egrep +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWxcu4 | +-----------------------------+-----------------------------+ |CSI |Enabled | +-----------------------------+-----------------------------+ SEE ALSO
fgrep(1), grep(1), sed(1), sh(1), attributes(5), environ(5), largefile(5), regex(5), regexp(5), XPG4(5) NOTES
Ideally there should be only one grep command, but there is not a single algorithm that spans a wide enough range of space-time trade-offs. Lines are limited only by the size of the available virtual memory. /usr/xpg4/bin/egrep The /usr/xpg4/bin/egrep utility is identical to /usr/xpg4/bin/grep -E. See grep(1). Portable applications should use /usr/xpg4/bin/grep -E. SunOS 5.11 24 Mar 2006 egrep(1)